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Electronics Worksheet: What Is a Microcontroller

Electronics lesson 21: What is a microcontroller? · Set 711 · 40 questions
TalentJR

Remember (One chip, one job): Microcontroller = processor + memory + input/output pins on one chip. Board parts: USB port (power and code), pins, reset button, power LED, main chip, voltage regulator. Write the program → upload over USB → it runs its loop for ever; power by USB or a small battery.

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  1. 1.🤖 Does a washing machine usually have a microcontroller inside? (a) No (b) Yes
  2. 2.Which job is done by the USB port? (a) runs the program (b) brings power and code (c) keeps the voltage steady (d) restarts the program
  3. 3.🤖 How does a new program get onto a microcontroller board? (a) typed on the chip (b) sent by sound (c) drawn with a pen (d) uploaded over USB
  4. 4.🤖 Microcontroller or laptop: which one has a built-in keyboard? (a) microcontroller (b) laptop
  5. 5.Which job is done by the main chip? (a) brings power and code (b) shows the board is on (c) runs the program (d) restarts the program
  6. 6.🧭 Which part of a microcontroller board keeps the voltage steady? (a) the pins (b) the main chip (c) the voltage regulator (d) the reset button
  7. 7.Which of these has no microcontroller inside? (a) a candle (b) a toy robot (c) a digital alarm clock (d) a washing machine
  8. 8.True or false: a microcontroller needs much more power. (a) True (b) False
  9. 9.🧭 Which part of a microcontroller board brings power and code? (a) the main chip (b) the USB port (c) the pins (d) the power LED
  10. 10.🤖 Where does the board keep its program when the power is off? (a) the power LED (b) the USB cable (c) flash memory (d) the resistor
  11. 11.Which of these usually has a microcontroller inside? (a) a plain wall switch (b) a TV remote (c) a candle (d) a spinning top
  12. 12.True or false: a microcontroller runs many apps at once. (a) True (b) False
  13. 13.Which job is done by the reset button? (a) connect sensors and LEDs (b) brings power and code (c) restarts the program (d) keeps the voltage steady
  14. 14.🧭 Which part of a microcontroller board restarts the program? (a) the voltage regulator (b) the pins (c) the main chip (d) the reset button
  15. 15.🤖 Does a smart watch usually have a microcontroller inside? (a) No (b) Yes
  16. 16.🤖 Microcontroller or laptop: which one runs many apps at once? (a) microcontroller (b) laptop
  17. 17.Which of these usually has a microcontroller inside? (a) a washing machine (b) a plain wall switch (c) a wind-up toy (d) a hand pump
  18. 18.🤖 When the main loop of a microcontroller program ends, what happens? (a) it deletes itself (b) it starts again (c) it stops forever (d) the board breaks
  19. 19.🤖 Does a bicycle bell usually have a microcontroller inside? (a) No (b) Yes
  20. 20.🤖 Microcontroller or laptop: which one uses very little power? (a) laptop (b) microcontroller
  21. 21.Which job is done by the pins? (a) brings power and code (b) connect sensors and LEDs (c) restarts the program (d) keeps the voltage steady
  22. 22.True or false: a digital alarm clock has no microcontroller inside. (a) False (b) True
  23. 23.🤖 Does a digital thermometer usually have a microcontroller inside? (a) Yes (b) No
  24. 24.True or false: a laptop uses very little power. (a) False (b) True
  25. 25.Which of these usually has a microcontroller inside? (a) a spinning top (b) a wind-up toy (c) a hand pump (d) a toy robot
  26. 26.True or false: a wind-up toy usually has a microcontroller inside. (a) True (b) False
  27. 27.Which job is done by the power LED? (a) brings power and code (b) runs the program (c) keeps the voltage steady (d) shows the board is on
  28. 28.🧭 Which part of a microcontroller board connect sensors and LEDs? (a) the power LED (b) the USB port (c) the voltage regulator (d) the pins
  29. 29.True or false: a TV remote usually has a microcontroller inside. (a) False (b) True
  30. 30.Which of these has no microcontroller inside? (a) a washing machine (b) a wind-up toy (c) a digital thermometer (d) a TV remote
  31. 31.Which of these usually has a microcontroller inside? (a) a candle (b) a smart watch (c) a bicycle bell (d) a plain wall switch
  32. 32.True or false: a digital thermometer has no microcontroller inside. (a) False (b) True
  33. 33.True or false: a digital thermometer usually has a microcontroller inside. (a) True (b) False
  34. 34.True or false: a laptop has no screen of its own. (a) True (b) False
  35. 35.True or false: a laptop has a built-in keyboard. (a) True (b) False
  36. 36.🧭 Which part of a microcontroller board runs the program? (a) the power LED (b) the reset button (c) the main chip (d) the USB port
  37. 37.🤖 Does a spinning top usually have a microcontroller inside? (a) Yes (b) No
  38. 38.Which of these has no microcontroller inside? (a) a microwave oven (b) a digital thermometer (c) a toy robot (d) a plain wall switch
  39. 39.True or false: a TV remote has no microcontroller inside. (a) False (b) True
  40. 40.🧭 Which part of a microcontroller board shows the board is on? (a) the voltage regulator (b) the power LED (c) the main chip (d) the USB port

Answer key

  1. Yes
  2. brings power and code
  3. uploaded over USB
  4. laptop
  5. runs the program
  6. the voltage regulator
  7. a candle
  8. False
  9. the USB port
  10. flash memory
  11. a TV remote
  12. False
  13. restarts the program
  14. the reset button
  15. Yes
  16. laptop
  17. a washing machine
  18. it starts again
  19. No
  20. microcontroller
  21. connect sensors and LEDs
  22. False
  23. Yes
  24. False
  25. a toy robot
  26. False
  27. shows the board is on
  28. the pins
  29. True
  30. a wind-up toy
  31. a smart watch
  32. False
  33. True
  34. False
  35. True
  36. the main chip
  37. No
  38. a plain wall switch
  39. False
  40. the power LED

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